Vehicle toilet vent apparatus

Details Vehicle toilet vent apparatus Vehicle toilet vent apparatus

1992-07-28

1994-04-05

Phillips, Charles E.

Baths, closets, sinks, and spittoons

Ventilation

454344, 4219, 4218, E03D 904

Patent

active

052993264

ABSTRACT:
The disclosed invention describes a vehicle waste tank ventilation exhaust fan, having the unique ability to provided positive exhaust on a continuous basis while diluting the contaminated air and odor being emitted by the waste tank with fresh air at a ratio in excess of five to one. A vacuum is drawn on the tank when the flush valve is closed by a small fan located over the tank vent pipe. A mixing chamber within the fan housing allows the fan to mix fresh air with odor from the tank and expel the odorous mixture over several hours.

REFERENCES:
patent: 281027 (1883-07-01), Cottier
patent: 949212 (1910-02-01), Bogart
patent: 3571822 (1971-03-01), Shaw
patent: 4042981 (1977-08-01), Cook
patent: 4759272 (1988-07-01), Zaniewski
patent: 4922557 (1990-05-01), Harding et al.
patent: 4962548 (1990-10-01), Van Deventer et al.
patent: 4974632 (1990-12-01), Ericson
patent: 4991623 (1991-02-01), Ericson

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